88a783a8a7
This is based on feedback talking with crop_octagon about the device. Future trackballs will ship with ATMEL DFU for simplicity. This also includes some fixes and optimizations based on code review and tinkering on my own devices.
265 lines
8.5 KiB
C
265 lines
8.5 KiB
C
/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
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* Copyright 2019 Sunjun Kim
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* Copyright 2020 Ploopy Corporation
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include QMK_KEYBOARD_H
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#ifndef OPT_DEBOUNCE
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# define OPT_DEBOUNCE 5 // (ms) Time between scroll events
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#endif
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#ifndef SCROLL_BUTT_DEBOUNCE
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# define SCROLL_BUTT_DEBOUNCE 100 // (ms) Time between scroll events
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#endif
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#ifndef OPT_THRES
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# define OPT_THRES 150 // (0-1024) Threshold for actication
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#endif
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#ifndef OPT_SCALE
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# define OPT_SCALE 1 // Multiplier for wheel
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#endif
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#ifndef PLOOPY_DPI_OPTIONS
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# define PLOOPY_DPI_OPTIONS { 1200, 1600, 2400 }
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# ifndef PLOOPY_DPI_DEFAULT
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# define PLOOPY_DPI_DEFAULT 1
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# endif
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#endif
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#ifndef PLOOPY_DPI_DEFAULT
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# define PLOOPY_DPI_DEFAULT 0
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#endif
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keyboard_config_t keyboard_config;
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uint16_t dpi_array[] = PLOOPY_DPI_OPTIONS;
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#define DPI_OPTION_SIZE (sizeof(dpi_array) / sizeof(uint16_t))
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// TODO: Implement libinput profiles
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// https://wayland.freedesktop.org/libinput/doc/latest/pointer-acceleration.html
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// Compile time accel selection
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// Valid options are ACC_NONE, ACC_LINEAR, ACC_CUSTOM, ACC_QUADRATIC
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// Trackball State
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bool is_scroll_clicked = false;
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bool BurstState = false; // init burst state for Trackball module
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uint16_t MotionStart = 0; // Timer for accel, 0 is resting state
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uint16_t lastScroll = 0; // Previous confirmed wheel event
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uint16_t lastMidClick = 0; // Stops scrollwheel from being read if it was pressed
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uint8_t OptLowPin = OPT_ENC1;
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bool debug_encoder = false;
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__attribute__((weak)) void process_wheel_user(report_mouse_t* mouse_report, int16_t h, int16_t v) {
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mouse_report->h = h;
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mouse_report->v = v;
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}
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__attribute__((weak)) void process_wheel(report_mouse_t* mouse_report) {
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// TODO: Replace this with interrupt driven code, polling is S L O W
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// Lovingly ripped from the Ploopy Source
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// If the mouse wheel was just released, do not scroll.
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if (timer_elapsed(lastMidClick) < SCROLL_BUTT_DEBOUNCE) {
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return;
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}
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// Limit the number of scrolls per unit time.
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if (timer_elapsed(lastScroll) < OPT_DEBOUNCE) {
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return;
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}
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// Don't scroll if the middle button is depressed.
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if (is_scroll_clicked) {
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#ifndef IGNORE_SCROLL_CLICK
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return;
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#endif
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}
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lastScroll = timer_read();
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uint16_t p1 = adc_read(OPT_ENC1_MUX);
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uint16_t p2 = adc_read(OPT_ENC2_MUX);
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if (debug_encoder) dprintf("OPT1: %d, OPT2: %d\n", p1, p2);
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uint8_t dir = opt_encoder_handler(p1, p2);
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if (dir == 0) return;
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process_wheel_user(mouse_report, mouse_report->h, (int)(mouse_report->v + (dir * OPT_SCALE)));
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}
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__attribute__((weak)) void process_mouse_user(report_mouse_t* mouse_report, int16_t x, int16_t y) {
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mouse_report->x = x;
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mouse_report->y = y;
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}
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__attribute__((weak)) void process_mouse(report_mouse_t* mouse_report) {
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report_pmw_t data = pmw_read_burst();
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if (data.isOnSurface && data.isMotion) {
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// Reset timer if stopped moving
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if (!data.isMotion) {
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if (MotionStart != 0) MotionStart = 0;
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return;
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}
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// Set timer if new motion
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if ((MotionStart == 0) && data.isMotion) {
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if (debug_mouse) dprintf("Starting motion.\n");
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MotionStart = timer_read();
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}
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if (debug_mouse) {
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dprintf("Delt] d: %d t: %u\n", abs(data.dx) + abs(data.dy), MotionStart);
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}
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if (debug_mouse) {
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dprintf("Pre ] X: %d, Y: %d\n", data.dx, data.dy);
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}
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#if defined(PROFILE_LINEAR)
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float scale = float(timer_elaspsed(MotionStart)) / 1000.0;
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data.dx *= scale;
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data.dy *= scale;
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#elif defined(PROFILE_INVERSE)
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// TODO
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#else
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// no post processing
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#endif
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// apply multiplier
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// data.dx *= mouse_multiplier;
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// data.dy *= mouse_multiplier;
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// Wrap to HID size
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data.dx = constrain(data.dx, -127, 127);
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data.dy = constrain(data.dy, -127, 127);
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if (debug_mouse) dprintf("Cons] X: %d, Y: %d\n", data.dx, data.dy);
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// dprintf("Elapsed:%u, X: %f Y: %\n", i, pgm_read_byte(firmware_data+i));
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process_mouse_user(mouse_report, data.dx, data.dy);
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}
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}
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bool process_record_kb(uint16_t keycode, keyrecord_t* record) {
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if (debug_mouse) {
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dprintf("KL: kc: %u, col: %u, row: %u, pressed: %u\n", keycode, record->event.key.col, record->event.key.row, record->event.pressed);
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}
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// Update Timer to prevent accidental scrolls
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if ((record->event.key.col == 1) && (record->event.key.row == 0)) {
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lastMidClick = timer_read();
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is_scroll_clicked = record->event.pressed;
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}
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if (!process_record_user(keycode, record)) { return false; }
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if (keycode == DPI_CONFIG && record->event.pressed) {
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keyboard_config.dpi_config = (keyboard_config.dpi_config + 1) % DPI_OPTION_SIZE;
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eeconfig_update_kb(keyboard_config.raw);
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pmw_set_cpi(dpi_array[keyboard_config.dpi_config]);
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}
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/* If Mousekeys is disabled, then use handle the mouse button
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* keycodes. This makes things simpler, and allows usage of
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* the keycodes in a consistent manner. But only do this if
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* Mousekeys is not enable, so it's not handled twice.
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*/
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#ifndef MOUSEKEY_ENABLE
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if (IS_MOUSEKEY_BUTTON(keycode)) {
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report_mouse_t currentReport = pointing_device_get_report();
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if (record->event.pressed) {
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currentReport.buttons |= 1 << (keycode - KC_MS_BTN1);
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} else {
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currentReport.buttons &= ~(1 << (keycode - KC_MS_BTN1));
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}
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pointing_device_set_report(currentReport);
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pointing_device_send();
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}
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#endif
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return true;
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}
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// Hardware Setup
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void keyboard_pre_init_kb(void) {
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// debug_enable = true;
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// debug_matrix = true;
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// debug_mouse = true;
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// debug_encoder = true;
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setPinInput(OPT_ENC1);
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setPinInput(OPT_ENC2);
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/* Ground all output pins connected to ground. This provides additional
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* pathways to ground. If you're messing with this, know this: driving ANY
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* of these pins high will cause a short. On the MCU. Ka-blooey.
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*/
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#ifdef UNUSED_PINS
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const pin_t unused_pins[] = UNUSED_PINS;
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for (uint8_t i = 0; i < (sizeof(unused_pins) / sizeof(pin_t)); i++) {
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setPinOutput(unused_pins[i]);
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writePinLow(unused_pins[i]);
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}
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#endif
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// This is the debug LED.
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#if defined(DEBUG_LED_PIN)
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setPinOutput(DEBUG_LED_PIN);
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writePin(DEBUG_LED_PIN, debug_enable);
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#endif
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keyboard_pre_init_user();
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}
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void pointing_device_init(void) {
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// initialize ball sensor
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pmw_spi_init();
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// initialize the scroll wheel's optical encoder
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opt_encoder_init();
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}
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bool has_report_changed (report_mouse_t first, report_mouse_t second) {
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return !(
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(!first.buttons && first.buttons == second.buttons) &&
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(!first.x && first.x == second.x) &&
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(!first.y && first.y == second.y) &&
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(!first.h && first.h == second.h) &&
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(!first.v && first.v == second.v) );
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}
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void pointing_device_task(void) {
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report_mouse_t mouse_report = pointing_device_get_report();
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process_wheel(&mouse_report);
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process_mouse(&mouse_report);
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pointing_device_set_report(mouse_report);
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if (has_report_changed(mouse_report, pointing_device_get_report())) {
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pointing_device_send();
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}
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}
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void eeconfig_init_kb(void) {
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keyboard_config.dpi_config = PLOOPY_DPI_DEFAULT;
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eeconfig_update_kb(keyboard_config.raw);
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}
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void matrix_init_kb(void) {
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// is safe to just read DPI setting since matrix init
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// comes before pointing device init.
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keyboard_config.raw = eeconfig_read_kb();
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if (keyboard_config.dpi_config > DPI_OPTION_SIZE) {
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eeconfig_init_kb();
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}
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matrix_init_user();
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}
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void keyboard_post_init_kb(void) {
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pmw_set_cpi(dpi_array[keyboard_config.dpi_config]);
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keyboard_post_init_user();
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}
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